ZIP Code 17810 — Allenwood, PA
17810 is a standard (street delivery) ZIP code serving Allenwood, Pennsylvania, in Lycoming County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 17810 at a glance
| ZIP code | 17810 |
|---|---|
| Primary city | Allenwood |
| State | Pennsylvania (PA) |
| County | Lycoming FIPS 42081 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 5,309 |
| Coordinates | 41.112300, -77.025430 |
How ZIP+4 works in 17810
The four digits after the hyphen encode a delivery segment inside 17810. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 17810 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 17810.
| ZIP | City | Distance |
|---|---|---|
| 17856 | New Columbia, PA | 4.7 mi |
| 17702 | Williamsport, PA | 5.5 mi |
| 17752 | Montgomery, PA | 7.3 mi |
| 17887 | White Deer, PA | 7.7 mi |
| 17730 | Dewart, PA | 7.8 mi |
| 17886 | West Milton, PA | 10.1 mi |
| 17777 | Watsontown, PA | 10.3 mi |
| 17837 | Lewisburg, PA | 10.4 mi |
| 17720 | Antes Fort, PA | 10.5 mi |
| 17844 | Mifflinburg, PA | 11.1 mi |
| 17749 | Mcewensville, PA | 11.4 mi |
| 17744 | Linden, PA | 11.5 mi |
Questions about 17810
What is the ZIP+4 code for 17810?
17810 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 17810, you need to look up a specific street address to get them.
What city is 17810?
17810 is assigned to Allenwood, Pennsylvania, in Lycoming County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.